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00 Index and foreword
Foreword, safety and general information
Selecting wire ropes
• Select adequate ropes for the weight of the parts
to be hoisted, referring to the table below
Wire rope (JIS G3525, 6 x 37 - Type A)
(Standard Z twist wire ropes without galvanizing)
Nominal
diameter of rope
mm
10
12
14
16
18
20
25
30
40
141.6
50
221.6
60
318.3
a The allowable load is calculated as one 6th of
the breaking load of the rope to be used (safety
factor: 6).
Precautions for disconnecting air conditioner
piping
When replacing the air conditioner unit, air
k
k
conditioner compressor, condenser or
receiver drier, etc., collect the refrigerant (air
conditioner gas: R134a) from the air
conditioner circuit before disconnecting the
air conditioner hoses.
a Ask a qualified person for collecting, adding and
filling operations of the refrigerant (air
conditioner gas: R134a).
a Never release the refrigerant (air conditioner
gas: R134a) to the atmosphere.
If refrigerant gas (air conditioner gas: R134a)
k
k
gets in your eyes, you may lose your sight. If
it touches your skin, you may suffer from
frostbite. Put on protective eyeglasses,
gloves and working clothes with long
sleeves while collecting the refrigerant or
filling the air conditioner circuit with the
refrigerant.
• When loosening the nuts of the air conditioner
piping, be sure to use 2 wrenches; Use one
wrench to fix one nut and use the other one to
loosen the other nut.
Precautions for air conditioner piping
• When installing the air conditioner hoses, be
careful to prevent dirt, dusts and water from
entering into them.
00-20
Allowable load
kN
ton
8.8
0.9
12.7
1.3
17.3
1.7
22.6
2.3
28.6
2.9
35.3
3.6
55.3
5.6
79.6
8.1
14.4
22.6
32.4
• Check that the O-rings are fitted to the joints
when connecting the air conditioner piping.
• Once an O-ring is used, it is deformed and
deteriorated. Accordingly, do not reuse it.
• When removing the O-rings, use a soft tool so
that the piping is not damaged.
• Check that each O-ring is not damaged or
deteriorated.
• Apply compressor oil for refrigerant (R134a) to
the O-ring.
a However, do not apply oil to the threaded
portions of bolts, nuts or unions.
Manufacturer
DENSO
ND-OIL8
ZXL100PG (equivalent to
VALEO THERMAL
PAG46)
SYSTEMS
SANDEN
SP-10
• When tightening nuts of the air conditioner
piping, be sure to use 2 wrenches. Use one
wrench to fix one nut and tighten the other nut
with the other wrench to the specified torque
(Use a torque wrench for tightening).
a Example of fitting of O-ring
• An O-ring is fitted to every joint of the air
conditioner piping.
For tightening torques, see Others,
"Precautions for disconnection and connection
of air conditioner piping" (Chapter 80).
Part name
HB215LC-2
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